北方农业学报 ›› 2020, Vol. 48 ›› Issue (2): 82-88.doi: 10.12190/j.issn.2096-1197.2020.02.13

• 植物保护·农业生态环境 • 上一篇    下一篇

北方地区养殖水还田对土壤环境的影响

郭二果1, 李长青2, 田彦峰3, 韩见弘1, 闫海霞1, 韩冬青1, 张晓娟4, 敦惠霞2   

  1. 1.内蒙古自治区呼和浩特生态环境监测站,内蒙古 呼和浩特 010030;
    2.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031;
    3.内蒙古优然牧业有限责任公司,内蒙古 呼和浩特 010010;
    4.鄂尔多斯市森林资源林政管理站,内蒙古 东胜 017100
  • 收稿日期:2020-02-14 出版日期:2020-04-20 发布日期:2020-07-17
  • 通讯作者: 李长青(1978—),男,研究员,博士,主要从事动物营养及牧草环境效应的研究工作。敦惠霞(1962—),女,编审,学士,主要从事农业信息管理及期刊出版工作。
  • 作者简介:郭二果(1978—),女,正高级工程师,博士,主要从事生态环境保护及农业面源环境影响的研究工作。
  • 基金资助:
    2018年内蒙古自治区人才开发基金项目; 内蒙古农牧业创新基金项目(2017CXJJM04); 内蒙古自然科学基金项目(2018MS03005); 2017年内蒙古自治区科技创新引导项目

Effects of return farm water to the field on the soil environment in Northern Area

GUO Erguo1, LI Changqing2, TIAN Yanfeng3, HAN Jianhong1, YAN Haixia1, HAN Dongqing1, ZHANG Xiaojuan4, DUN Huixia2   

  1. 1. Hohhot Environment Monitoring Station in Inner Mongolia Autonomous Region,Hohhot 010030,China;
    2. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031, China;
    3. Inner Mongolia Youran Animal Husbandry LLC, Hohhot 010010,China;
    4. Ordos Forest Resources Management Station,Dongsheng 017100,China
  • Received:2020-02-14 Online:2020-04-20 Published:2020-07-17

摘要: 【目的】探索北方地区养殖水还田后对土壤环境的影响。【方法】采用对比分析方法,以呼和浩特市某规模化奶牛养殖场为例,研究养殖水还田对土壤理化性质、重金属含量、营养元素含量的影响。【结果】施用养殖水6年后,土壤pH值发生明显变化,表层、中层、深层土壤pH值均高于未施用地相应层次pH值。而土壤容重、土粒密度、土壤孔隙度变化不大。土壤重金属类元素含量总体未发生明显变化,Cu、Zn、As、Ni、Cr、Cd、Hg、Pb等元素的含量均未超过农用地土壤污染风险筛选值,土壤环境质量仍处于清洁安全状态。Cu、Ni、Cd含量在表层土壤稍有增加。施用养殖水后,土壤中硝酸盐、全钾、速效钾含量有所升高,特别是表层土壤升高趋势更明显,表层土壤硝酸盐含量是未施用地的10倍,而氨氮含量较未施用地有所降低。【结论】施用养殖水6年后,土壤理化性质、重金属含量、营养元素含量均发生一定变化,土壤环境质量仍处于清洁安全状态。

关键词: 北方地区, 养殖水, 土壤环境

Abstract: 【Objective】To investigate the effects of the farming water returned to the corn field on the soil environment in Northern Area.【Methods】Take a large-scale dairy farm in Hohhot as an example,the effects of farming water on soil physical and chemical properties, heavy metal contents and nutrient element contents were studied by comparative analysis.【Results】After the farm water was returned to the field 6 a, soil pH value was significantly changed, and the pH value of surface, middle and deep soil were all higher than that of CK. However, soil bulk density, soil grain density and soil porosity and the content of heavy metal elements in the soil did not change significantly. The content of Cu, Zn, As, Ni, Cr, Cd, Hg, Pb and other elements did not exceed the screening value of soil pollution risk in agricultural land, and the soil environmental quality was still in a clean and safe state. Cu, Ni and Cd contents increased slightly in the topsoil. After the application of farming water, the content of nitrate, total potassium and available potassium in the soil increased to some extent, especially in the surface. The content of nitrate in the surface soil was 10 times higher than CK, but the content of ammonia nitrogen was lower.【Conclusion】After the farm water was returned to the field 6 a, nevertheless, the soil physical and chemical properties, heavy metal content and nutrient element content all changed, the soil environmental quality was still in a clean and safe state.

Key words: Northern Area, Farming water, Soil environment effects

中图分类号: 

  • S275.6